I think B. fervidus but I need to check.
Photo by musellarose Pollinator count on Cirsium altissimum
Very large, perhaps a queen?
T1 & T2 yellow, small patches of dark hairs on the sides of T2
From my brown-headed nuthatch nesting box.
Found this buried in an old chickadee nest in one of my bluebird boxes.
We saw a number of these "white bees", and were stumped. We finally decided they could possibly be frigidus? The book says "T5 orange,... although sometimes this is very pale". Very pale.
Found at the same location as this frigidus queen.
Any help appreciated.